respiration

respiration

not breathing in and out
1. goes to every cell in the body - process of releasing energy from glucose
  1. ATP acts as an energy source for many cell processes and transports energy
    1. respiration is controlled by enzymes - rate of respiration is affected by pH and temp
aerobic respiration
1. happens when there is plenty of oxygen available
  1. most efficient way to release energy from glucose
    1. this is used most of the time
      1. glucose + oxygen ----> carbon dioxide + water + (energy0
        respiration rate increases, oxygen consumption and carbon dioxide production increases
        rate of oxygen consumption can be used to estimate metabolic rate
anaerobic respiration = doesnt use oxygen
1. vigorous exercise cant supply enough oxygen to muscles for aerobic resp - heart rate and breathing rate increase as much as they can - muscles have to start respiring anaerobically
  1. not the best way to convert glucose to energy bcuz it releases much less energy per glucose molecule than aerobic
    1. in aerobic glucose is only partially broken down - lactic acid is produced - lactic acid builds up in the muscles = pain and muscle fatigue
      1. glucose ---> lactic acid + (energy)
        after resorting to anaerobic resp you have an oxygen debt - need extra oxygen to break down all of the lactic acid that has built up in muscles and allow aerobic to begin
        keep breathing hard after exercising to repay the debt
        lactic acid has to carried to liver so heart rate stays high
        LLL
        RQ = amount of CO2 produced / amount of O2 produced
        0.7-1 = respiring aerobically
        greater than 1 = short of oxygen respiring anaerobically

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